Hi All,
When RSVP is used to achieve traffic engineering, Typically I understand
that it would request the network for a configured amount of bandwidth
when a conversation starts. Now If I configure a VPN to be allocated 2
Mbps bandwidth, When a conversation starts will RSVP request for 2 Mbps
bandwidth & not release excess bandwidth that is not used during the
conversation, or else does it work statistically, wherein wasted bandwidth
is released during the conversation.
"IIRC It doesn't work statistically and has options for pools that you can
configure and you can add different "classes" for which pool the bandwidth
is allocated from based upon what COS you want to offer." - Can this be explained in a little more detail, I would greatly appreciate
if it be explained with an example pls.
I understand that people offer MPLS VPN services using Frame Relay as the
last mile to the Customer. This service provider builds a Frame Relay
access & an MPLS core typically using a switch like the Cisco BPX. The
benefit here is that the customer is only using a single PVC, & can get
connected to how many ever Intranet sites needed.My question is in such a
scenario how does the service provider offer lastmile CIR's (comitted
bandwidth) for connectivity to multiple sites using a single PVC. In the
case of IP probably CAR would do the job at the ingress.
Kindly advice,
With regards,
Vinod.
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